Pump.



c. M. SEARS.

PUMP. APPLICAHON FILEDSEPT. i6 i916.

CLARENCE MARSHALL sEAns, or DERBY, coLonAEo,

Einar.v

massue.

To all whom t may concern.'

Be it known that I, CLARENCE M. SEARS,

l a citizen of the United States, and a resident of Derby, in the county of Adams and State of Colorado, have invented a new and Improved Pump, of which the following is a full, clear, and exact description. n

The invention re-lates to pumps using one or more revolving impellersfor shifting the.v

water or other liquid.

The object of the invention is to provide a new and improved pump more especially designed for use in wells, mines and other places from which water or other liquid is to be raised to a desired height and which is simple and durable in construction, cheap to manufacture and composed of comparatively few parts not liable to get easily out of order.

In order to accomplish the desired result, use is made of a cylinder having an open cap at the bottom, an outlet near the upper end, and a stuffing box on the top of the cylinder.l a shaft arranged centrally in the said cylinder and extending through the said stufling boX to the outside of the cylinder, a step bearing on the said cap and engaged by the lower end of the said shaft, and an impeller secured on the said shaft within the said cylinder.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a front elevation of the pump with parts shown in section;

Fig. 2 is a side elevation of the upper end of the pump;

Fig. 3 is an enlarged sectional detail of the contiguous ends of cylinder and shaft sections;

Fig. 4 is a sectional plan view on the line 4-4 of Fig. 3; and

Fig. 5 is an enlarged sectional plan view of the lower end of the pump, the section being on the line 5--5 of Fig. 1.

The pump cylinder 10 shown in the drawings, consists of an upper or loutlet section 11, a middle section 12 and a bottom section 13, but any number of sections may be used according to the depth. of the well, mine or other place on which the pump is used. Theoutlet section 11 is provided on the top'with a suitable stuffing boX 15 for closing the upper end of the cylinder. The sections 11,

specification of Leitersrafeat. a,

' .Patented-N6 6, 1917.

" application inea 'septime-16,1915.. semina 120,435.:

12 are provided 'at their adjacent end's'with flanges 16 fastened together bolts 17, the lower flange resting on the' base 18 of a framework 19 resting on a grate or other foundation 20. The sections 12,13 are similarlyY fastened together by flangesl 21 and bolts 22. The lower end of the section 13 is provided withy a ca-p 23 provided with inlets 24 for the water.- Vithin the` cylinder 10 is arranged a shaft, preferably made in sections 30, 31, coupled together by 'coupling members 32, 33,`of which thec'oupling mem-f ber 32`is secured tolthe lower end of the shaft section 30 and is provided with a' tongue 3 4 engaging a groove ,35.forrned in 'the'. other coupling member By the arrangement described, any deviation in the axial alinement ofthe shafts 30 and 31 is taken care of without impairing the working of the pump.. The upper end of the' shaft section 30 extends through the stuffing boX 15 and its outer end is journaled in suitable bearings 40 arranged on the framework 19. A pulley 41 or other driving means is connectedlv with the upper end of the shaft section 30 for rotating the shaft.

The lower end of the shaft section 31 is provided with a socket 42 engaging a step bearing 43 held, centrally in a socketv 44 formed in the cap 23, the step bearing 43 being preferably of hardwood, such as lig-V num-vitae, but other material may be used; It is understood that the step bearing supports the shaft and the load when the pump is in operation.

On the lower vend of the shaft section 30 is secured an impeller 50, and a similar impeller 51 is mounted near the lower end of the shaft section 31. Each impeller 50 and 51 consists preferably of two oppositely disposed spiral plates s'o that when the shaft is l rotated and with it the impellers then, the

out through the outlet 14. The shaft section 31 extends near its upper end through a bearing 60 having spider arms 61 engaged by screws 62 screwing in the cylinder section 13 to support the spider bearing and to center the same so as to insure proper running of the shaft without danger of binding. Any

number of said spider 'bearings 60 may bev used in the cylinder, and, in practice, such spider bearings are placed say about ve feet apart.

The pump shown and described is practically complete when manufactured and can be readily placed intoa well of any description. It will also be noticed that the pump is composed of comparatively few parts, not liable easily to get out of order, and the pump 'can be cheaply manufactured and marketed lat a reasonable price.

Having' thus described my invention, I claim as'new and desire to secure by Letters Patent:

l. A pump of the type described, comprising a cylinder having an open cap at the bottom, an outlet near the upper end and a stuiiing box on the top yofthe cylinder, shaft arranged centrally in the said cylinder and extending through the said 4stuffing box, a step bearing` on the said cap and engaged by the lower end of the said shaft, an impeller secured on the said shaft within the said cylinder, a spider bearing' within the said cylinder and through which extends the said shaft, and screws coupling connecting' the adjacent ends of the shaft sections together, an im-peller on the lower end of each shaft section, an open cap on the lower end cf the cylinder, a step bearing' on the said cap for the lower end of the shaft, a spider bearing for the shaft within the cylinder and adjacent a shaft coupling', and screws on the cylinder and engaging' the said spider bearing.

ln testimony whereof l have signed my name to this specilication in the presence of two subscribing' witnesses.

CLARENCE MARSHALL SEARS. lVitnesses:

ROGERv H. lVoLcoTT, JOSEPH D. PENDEP..

Copies oi this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

